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题名: Amperometric glucose biosensor based on ultrafine platinum nanoparticles
作者: Cao, Zhaoxia;  Zou, Yongjin;  Xiang, Cuili;  Sun, Li-Xian;  Xu, Fen
通讯作者: 孙立贤
关键词: amperometric enzyme biosensor ;  platinum nanoparticle ;  glucose oxidase
刊名: ANALYTICAL LETTERS
发表日期: 2007
DOI: 10.1080/00032710701566909
卷: 40, 期:11, 页:2116-2127
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1504
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: In the present paper the ultrafine and highly dispersed platinum nanoparticles ( average size 3 nm) were used for the construction of a glucose biosensor in a simple method. An excellent response to glucose has been obtained with a high sensitivity (137.7 mu A mM(-1) cm(-2)) and fast response time (5 s). The biosensor showed a detection limit of 5 mM (at the ratio of signal to noise, S/ N = 3) and a linear range form 0.2 to 3.2 mM with a correlation coefficient r = 0.999. The apparent Michaelis - Menten constant (k(m)) and the maximum current were estimated to be 9.36 and 1.507 mA mM(-1) cm(-2), respectively. In addition, effects of pH value, applied potential and the interferents on the amperometric response of the sensor were investigated and discussed.
关键词[WOS]: CARBON NANOTUBES ;  ELECTROCHEMICAL SENSORS ;  IMMOBILIZATION MATRIX ;  ELECTRODE ;  OXIDASE ;  ENZYME ;  NANOCOMPOSITE ;  FABRICATION ;  CATALYST ;  CODEPOSITION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000250834700004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99621
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China

Recommended Citation:
Cao, Zhaoxia,Zou, Yongjin,Xiang, Cuili,et al. Amperometric glucose biosensor based on ultrafine platinum nanoparticles[J]. ANALYTICAL LETTERS,2007,40(11):2116-2127.
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